The Director of Defence Territory of Ministry of Defence stated maritime boundaries between Indonesia and Timor Leste have not yet been agreed. The main reason for this is that because land boundaries between the two States have not yet been finalized. Similarly, the President of Indonesia stated that 97% of land boundaries has been settled. Before land boundaries are agreed, no maritime boundary delimitation can be initiated.
Here is the map of Nusa Tenggara Timur (Indonesia) and Timor Leste.